Abstract
Heart failure and atrial fibrillation are two diseases that often coexist and contribute to worsening the prognosis and quality of life of patients. Managing this situation is still a challenge today. The ablation of the atrioventricular node associated with cardiac resynchronization therapy (CRT) fits into this context as a definitive but effective solution. Indeed, long-term positive results have been demonstrated in patients with atrial fibrillation ineligible for ablation and refractory to medical therapy in terms of symptom reduction and, more recently, also mortality. Furthermore, the role of this strategy in obtaining adequate biventricular pacing in patients who may benefit from CRT but are ineligible due to the presence of atrial fibrillation is being highlighted.